Skip to Content
Find More Like This
Return to Search

Diffusion barriers in modified air brazes

United States Patent

April 6, 2010
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
A method for joining two ceramic parts, or a ceramic part and a metal part, and the joint formed thereby. The method provides two or more parts, a braze consisting of a mixture of copper oxide and silver, a diffusion barrier, and then heats the braze for a time and at a temperature sufficient to form the braze into a bond holding the two or more parts together. The diffusion barrier is an oxidizable metal that forms either a homogeneous component of the braze, a heterogeneous component of the braze, a separate layer bordering the braze, or combinations thereof. The oxidizable metal is selected from the group Al, Mg, Cr, Si, Ni, Co, Mn, Ti, Zr, Hf, Pt, Pd, Au, lanthanides, and combinations thereof.
Weil; Kenneth Scott (Richland, WA), Hardy; John S. (Richland, WA), Kim; Jin Yong (Richland, WA), Choi; Jung-Pyung (Richland, WA)
Battelle Memorial Institute (Richland, WA)
11/ 811,633
June 11, 2007
GOVERNMENT RIGHTS STATEMENT The invention was made with Government support under Contract DE-AC0676RLO 1830, awarded by the U.S. Department of Energy. The Government has certain rights in the invention.